Wi-fi could be used to detect weapons and bombs

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Ordinary wi-fi could be used to detect weapons and explosives in public places, according to a study led by the Rutgers University in New Jersey.

Wireless signals can penetrate bags to measure the dimensions of metal objects or estimate the volume of liquids, researchers claim.

Initial tests appeared to show that the system was at least 95% accurate. 

Editor's Comment
We should care more for our infrastructure, road safety

These roads, which are vital conduits for trade and tourism, have long been in dire need of repair. However, while this development is undoubtedly a positive step, it also raises questions about broader issues of infrastructural management and road safety that deserve closer scrutiny.The A3 and A33 roads are not just any roads, they are critical arteries that connect Botswana to its neighbours and facilitate the movement of goods and people...

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